Two Republican Senate incumbents have already lost renomination in 2026 primaries—Bill Cassidy in Louisiana and John Cornyn in Texas—following challenges from candidates aligned with President Trump. Trader consensus at 3 reflects expectations of one additional defeat among remaining GOP incumbents with active primary contests, such as those in states with late-summer or fall voting. Most other Republican Senate primaries have produced decisive wins for incumbents like Roger Marshall in Kansas and Bill Hagerty in Tennessee, with limited polling or fundraising signals pointing to further upsets. The low probability assigned to 4 or more stems from the small number of contested races still unresolved and historical patterns of low incumbent defeat rates in Senate primaries.
Polymarketデータを参照したAI生成の実験的な要約。これは取引アドバイスではなく、このマーケットの解決方法には一切関係ありません。 · 更新日3 70.4%
4 13.0%
2 7.0%
>4 2.6%
$53,991 Vol.
$53,991 Vol.
0
<1%
1
<1%
2
13%
3
70%
4
13%
>4
3%
3 70.4%
4 13.0%
2 7.0%
>4 2.6%
$53,991 Vol.
$53,991 Vol.
0
<1%
1
<1%
2
13%
3
70%
4
13%
>4
3%
This market will resolve according to the number of Republican Senate incumbents who do not win their nominating election to move on to the general election as a result of the 2026 midterm primary elections.
An incumbent will be considered not to have won their election if they are not declared the winner of the election they sought, including if they withdraw, suspend, or otherwise leave the race at any point after officially registering as a candidate, regardless of the reason. Incumbents who do not officially register as candidates for reelection will not be considered.
This market will resolve based on the results of all Senate nominating elections, including party primaries, top-two or jungle primaries, and primaries for special elections, that are scheduled to occur between March 1 and September 30, 2026. If a required runoff for any such election or a subsequent qualifying round in a non-partisan primary system could change the market’s outcome, the market will remain open until that contest is conclusively called by this market’s resolution sources.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time of their nominating election. A candidate without a ballot-listed affiliation to either the Democratic or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus prior to the conclusion of the relevant nominating election.
The resolution source for this market will be the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all relevant nominating elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on official state certification of the nominating election results.
マーケット開始日: Jan 14, 2026, 2:51 PM ET
Resolver
0x2F5e3684c...This market will resolve according to the number of Republican Senate incumbents who do not win their nominating election to move on to the general election as a result of the 2026 midterm primary elections.
An incumbent will be considered not to have won their election if they are not declared the winner of the election they sought, including if they withdraw, suspend, or otherwise leave the race at any point after officially registering as a candidate, regardless of the reason. Incumbents who do not officially register as candidates for reelection will not be considered.
This market will resolve based on the results of all Senate nominating elections, including party primaries, top-two or jungle primaries, and primaries for special elections, that are scheduled to occur between March 1 and September 30, 2026. If a required runoff for any such election or a subsequent qualifying round in a non-partisan primary system could change the market’s outcome, the market will remain open until that contest is conclusively called by this market’s resolution sources.
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time of their nominating election. A candidate without a ballot-listed affiliation to either the Democratic or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus prior to the conclusion of the relevant nominating election.
The resolution source for this market will be the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called all relevant nominating elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on official state certification of the nominating election results.
Resolver
0x2F5e3684c...Two Republican Senate incumbents have already lost renomination in 2026 primaries—Bill Cassidy in Louisiana and John Cornyn in Texas—following challenges from candidates aligned with President Trump. Trader consensus at 3 reflects expectations of one additional defeat among remaining GOP incumbents with active primary contests, such as those in states with late-summer or fall voting. Most other Republican Senate primaries have produced decisive wins for incumbents like Roger Marshall in Kansas and Bill Hagerty in Tennessee, with limited polling or fundraising signals pointing to further upsets. The low probability assigned to 4 or more stems from the small number of contested races still unresolved and historical patterns of low incumbent defeat rates in Senate primaries.
Polymarketデータを参照したAI生成の実験的な要約。これは取引アドバイスではなく、このマーケットの解決方法には一切関係ありません。 · 更新日

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